The eight-time Olympic gold medallist has arrived in Australia for his trial period at the A-League side, with the objective trying to secure a permanent stay at the club.

Bolt has acknowledged that people will have their doubts regarding his efforts to become a professional football player, but the Jamaican has reiterated that he is prepared to work as hard as he can.

At a press conference, the 32-year-old told reporters: "I'm here. For me, people are always going to say what they say. Just like when I was in track and field, people said a lot of things about me but I always proved them wrong. So, it's just another moment for me to prove people wrong.

"For me, it's just like track and field. The first day of training is always the roughest one. You can tell how much work you need to put in, what you need to do. It felt OK. I know it's going to take time and work and I'm ready to work."